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All Journal Jurnal Teknik Kimia Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Chemistry Indonesian Journal of Chemical Research Berdikari: Jurnal Pengabdian Masyarakat Indonesia Jurnal Serambi Engineering Literasi: Jurnal Pengabdian Masyarakat dan Inovasi
Riza Alviany
Program Studi Teknik Kimia Institut Teknologi Kalimantan
Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Energy Engineering Environmental Science Other

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PROSES PRODUKSI KATALIS -Al2O3 MENGGUNAKAN METODE IMPREGNASI Alviany, Riza; Marbun, Maja Pranata; Kurniawansyah, Firman; Roesyadi, Achmad
Jurnal Teknik Kimia Vol 12, No 2 (2018): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v12i2.1088

Abstract

Alumina (Al2O3) merupakan salah satu material keramik yang paling banyak penggunaanya sebagai katalis, support katalis. Penelitian ini bertujuan mempelajari pembuatan nano catalys γ-Al2O3 dengan metode impregnasi. Pada proses impregnasi dilakukan variasi berupa rasio logam Cr dengan Co (1:1, 1:2, 2:1) dan % loading logam promotor tehadap jumlah total katalis Cr-Co/γ-Al2O3 (5% dan 10%). Dari analisa XRD diketahui bahwa kristal γ-Al2O3 hasil sintesis berukuran 17,82 nm, kemudian dari analisa BET didapatkan hasil luas permukaan sebesar 162,840 m2g. Berdasarkan analisa XRF diketahui bahwa logam yang terkandung dalam katalis Cr-Co/γ-Al2O3. Uap keluaran reaktor dikondensasikan dan dilakukan analisa gas kromatografi (GC). Dari hasil analisa produk didapatkan bahwa katalis GACrCo1021 memiliki aktivitas yang lebih baik dari katalis lainnya berdasarkan hasil konversi etanol dan yield dietil eterDOI : https://doi.org/10.33005/tekkim.v12i2.1088 
PEMURNIAN GLISEROL HASIL PRODUK SAMPING BIODIESEL DENGAN KOMBINASI PROSES ADSORPSI-MIKROFILTRASIEVAPORASI Suseno, Natalia; Adiarto, Tokok; Alviany, Riza; Novitasari, Kartika
Jurnal Teknik Kimia Vol 13, No 2 (2019): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v13i2.1406

Abstract

Penelitian ini, gliserol kasar (crude glycerol) diperoleh dari produk samping produksibiodiesel berupa larutan kental yang berwarna coklat kekuningan dengan pH mendekati netral.Kondisi awal kemurnian crude glycerol termasuk cukup tinggi (~80%), namun untuk mendapatkangliserol dengan standart komersial kemurnian tinggi (>90%), masih diperlukan penghilangansenyawa pengotor seperti garam-garam inorganik, methanol dan air. Untuk tujuan menghasilkanpemurnian gliserol dengan standar komersial, kandungan pengotor dipisahkan dengan kombinasiproses adsorpsi dengan karbon aktif, dilanjutkan penyaringan menggunakan membran danpemisahan methanol dan air dengan menggunakan rotary evaporator. Selain itu dipelajari pengaruhvariabel-variabel proses adsorpsi (jenis adsorben dengan tingkat kemurnian teknis dan p.a ,konsentrasi adsorben dan waktu adsorpsi) terhadap kadar kemurnian gliserol yang dihasilkan.Karakterisasi gliserol meliputi analisa kadar gliserol total, densitas, viskositas, dan gugus fungsimenggunakan FTIR. Gliserol hasil pemurnian tidak berwarna (bening) dengan kadar kemurnianmaksimum 92,81%, viskositas 152,48cp dan densitas 1,254g/cm3 mendekati standart kemurniangliserol komersial. DOI : https://doi.org/10.33005/tekkim.v13i2.1406
Pembuatan Larvasida Daun Jeruk Limau Dan Kelambu Air Untuk Pencegahan Kasus Demam Berdarah Karang Joang: Making Larvicides from Lime Leaves and Water Mosquito Nets to Prevent Cases of Dengue Fever in Karang Joang Lusi Ernawati; Dian Rahmawati; Asful Hariyadi; Riza Alviany
Berdikari: Jurnal Pengabdian Masyarakat Indonesia Vol. 5 No. 1 (2022): Berdikari: jurnal Pengabdian Masyarakat Indonesia
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/bjpmi.05.01.02

Abstract

The health office in Balikpapan is still tracking the number of dengue cases, which has reached at least 90 cases, until the third week of March 2022. During this outbreak, almost everyone is focused on avoiding and treating Covid-19 infections. Dengue fever is an illness to which you should pay close attention. In particular, because dengue fever remains a dangerous sickness in Indonesia. A range of approaches, including the use of larvicides, have been used to prevent and control dengue hemorrhagic fever (DBD). It is only that the mosquito that spreads Dengue Hemorrhagic Fever (DBD) has become susceptible to chemical larvicides, which are widely used by the general public. The purpose of this community service project is to teach people how to produce environmentally friendly natural larvicides from lime leaves. Community socialization, training in how to create larvicide, and knowledge evaluation are all part of the implementation phase. The memorial service will be place in Karang Joang North Balikpapan. Through lectures question and answer sessions, the community gets involved in the implementation process. Training and the use of health protocols are used directly in the manufacturing of larvicides. Water nets were built in several water reservoirs owned by homeowners, as well as similar programs involving of the monitoring and evaluation to provide the instruction and training on natural larvicide technology.
Pengenalan Sains Terapan Sederhana Guna Meningkatkan Minat Sains Pada Siswa di Lingkungan SMP Negeri 17 Balikpapan Riza Alviany; Inggit Kresna Maharsih; Fadhil Muhammad Tarmidzi; Bangkit Gotama; Memik Dian Pusfitasari
Literasi: Jurnal Pengabdian Masyarakat dan Inovasi Vol 3 No 1 (2023)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Students' interest in learning may be enhanced through an attractive learning design. An attractive learning design can improve the quality of student understanding, where improvement can be assessed from the effectiveness of learning. Aspects that can affect the effectiveness of learning are learning curriculum, facilities, and teacher quality. Of the three aspects, the aspect of facilities is often a problem in schools. One example of limited school facilities is the inadequacy of the Natural Sciences Laboratory. Public Junior High School (SMPN) 17 Balikpapan is one of the schools which is constrained in the aspect of facilities where it only has one Science Laboratory so that the practicum is only carried out occasionally. Therefore, community service is carried out at SMPN 17 Balikpapan through the "Introduction to simple applied science to increase interest in science" program in which it is hoped that students' knowledge and interest in science will increase. To increase the knowledge and interest of students in science, a simple hands-on module is implemented. Before doing practicum, students are first given science material in the form of basic theory related to the experiment to be carried out. Evaluation of the activity was carried out by conducting a post-test on students in the class that was the target of the program (VII G) and the comparison class (VII A). The evaluation results showed that class VII G got a higher average score than class VII A, but class VII A got a score ≥ 75 which had a higher percentage. Field findings show that the addition of practical modules in learning methods has a positive impact on students' learning motivation. This simply did not have a significant impact on the team's expected achievement objectives, with only 6.9% achieving a score of 75.
Pemanfaatan Fly Ash sebagai Adsorben dalam Pemurnian Crude Glycerol dari Hasil Produk Samping Biodiesel Riza Alviany; Dhea Novita; Rizky Anggara Pratama; Fadhil Muhammad Tarmidzi
Jurnal Serambi Engineering Vol 8, No 2 (2023): April 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i2.5981

Abstract

The increase of biodiesel production capacity is followed by an increase in crude glycerol production as a by-product. Crude glycerol still has a low purity and a lot of impurities so it requires special treatment so that it can be utilized and valuable. One of the ways to increase the purity of crude glycerol is in the adsorption process. This study aims to determine the best conditions for the adsorption process and the characteristics of the glycerol produced after the adsorption process. The initial condition of crude glycerol purity is low, namely 67.8%, so purification is needed. One way of purifying crude glycerol is by physically separating it using fly ash as an adsorbent. The experiment was carried out with the adsorption process using fly ash with the adsorbent mass variable 30,35,40,45, and 50 grams and the adsorption time variable was 50,60, and 70 minutes. The purified products are analyzed quantitatively and qualitatively, including glycerol content, density, viscosity, moisture content, ash, and MONG. The best conditions for the adsorption process using fly ash were obtained at a mass of 50 grams with a time of 50 minutes with the results that the glycerol content was 97.5%, water content 0.03%, ash content 0.0432%, MONG content 2.426%, density 1.253 gr / ml , viscosity 233.56 cP. Based on these results, purified glycerol was obtained that met the quality standards of SNI 06-1564-1995.
Pengaruh Aktivator Asam Sulfat dan Natrium Klorida pada Karbon Aktif Batang Semu Pisang untuk Adsorpsi Fe Fadhil Muhammad Tarmidzi; Maylina Anindita Sugiharti Putri; Anisa Novi Andriani; Riza Alviany
Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Vol. 5 No. 1 (2021)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rbaet.2021.005.01.03

Abstract

Batang semu pisang merupakan salah satu bahan alam kaya selulosa yang murah. Nilai batang semu pisang yang rendah dapat ditingkatkan menjadi material karbon aktif yang berkelanjutan dan ramah lingkungan. Karbon aktif batang pisang dapat digunakan untuk adosrpsi Fe dalam air baku. Sistem adsorpsi menjadi teknologi yang cocok untuk digunakan di daerah pedesaan yang mengandalkan air tanah. Oleh karena itu, penelitian ini bertujuan untuk mengembangkan sistem karbon aktif untuk adosrpsi Fe dari air tanah. Sintesis karbon aktif dilakukan dengan pencucian untuk menghilangkan getah dan komponen terlarut, pengeringan suhu 105oC selama 3 jam, karbonisasi suhu 400oC selama 30 menit, aktivasi asam menggunakan H2SO4, dan penetralan. Penelitian ini dilakukan untuk mempelajari pengaruh konsentrasi aktivator pada 0,3 M; 0,5 M; dan 0,7 M terhadap bilangan iodin dan kemampuan adosrpsi Fe. Konsentrasi Fe ditentukan dengan menggunakan spektroskopi adsorpsi atom (SSA). Hasil penelitian menunjukkan bahwa penggunaan aktivator 0,3 M H2SO4 memberikan hasil terbaik dengan bilangan iodin 58,23 mg/g dan Fe teradsorp sebanyak 80,85%.
Water Stability Characteristic of Nile Tilapia (Oreochromis niloticus) Feed Coated with Tapioca Flour-beeswax-based Edible Coating Inggit Kresna Maharsih; Fadhil Muhammad Tarmidzi; Memik Dian Pusfitasari; Riza Alviany; Ahmad Yuli; Asnawi Asnawi
Indonesian Journal of Chemical Research Vol 11 No 2 (2023): Edition for September 2023
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598//ijcr.2023.11-ing

Abstract

One of the reasons in increasing water turbidity in nile tilapia aquaculture is the presence of spoilage in fish feed that is easily disintegrate and decompose as organic matters in the water. Therefore, a thin layer or edible coating is needed to coat the tilapia feed to slow down the decomposition of the feed due to water absorption. The main ingredients for tilapia feed are tapioca flour added with beeswax solution and glycerol as a plasticizer. In this study, the glycerol concentrations used were 3%, 5%, and 7%, and the beeswax concentrations used were 0.25% w/v, 0.50 % w/v, and 0.75 % w/v. The purpose of this study was analysed the effect of plasticizers and beeswax on the characteristics of the edible coating. The method used to coat tilapia feed is the dipping method, where the product is dipped in a coating solution. The results of the research can be demonstrated by performing a and functional group test using FTIR spectra, contact angle test, and water resistance test of coated fish feed.
Co-Authors Achmad Roesyadi Ahmad Yuli Anisa Novi Andriani Asnawi Asnawi Bangkit Gotama Dhea Novita Dian Rahmawati Fadhil Muhammad Tarmidzi Fadhil Muhammad Tarmidzi Fadhil Muhammad Tarmidzi Hariyadi, Asful Inggit Kresna Maharsih Kurniawansyah, Firman Lusi Ernawati Marbun, Maja Pranata Maylina Anindita Sugiharti Putri Memik Dian Pusfitasari Memik Dian Pusfitasari Natalia Suseno, Natalia Novitasari, Kartika Rizky Anggara Pratama Tokok Adiarto